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Liquid unit dose detergent composition

a detergent composition and liquid unit dose technology, applied in detergent compositions, soap detergent compositions, surface-active non-soap compounds and soap mixture detergents, etc., can solve the problems of high non-aqueous solvents, high water content, and difficult to incorporate high-level fatty acids in single-phas

Active Publication Date: 2006-02-21
PROCTER & GAMBLE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution allows for a cost-effective, single-phase, low water detergent composition with improved solubility of fatty acids, reducing the need for high non-aqueous solvents and maintaining effective cleaning performance across various applications.

Problems solved by technology

However it remains a problem associated with non-aqueous, or low water, detergent compositions that high amounts of non-aqueous solvents are needed in order to maintain a single-phase, homogeneous, pourable liquid, and such high amounts of non-aqueous solvents are expensive.
In particular while fatty acids provide significant benefits for cleaning, it is difficult to incorporate high levels of fatty acids in single-phase, low water, liquid unit dose compositions because of their limited solubility.

Method used

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Examples

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examples

[0029]In tables 1 and 2, examples 1, 2 and 3 are representative of the invention and contain partially neutralized fatty acids. Composition A is a reference composition having fully neutralized fatty acids. Table 1 reports the % by weight of the components. Table 2 reports the molar amount of the acids and bases and a calculation of the % neutralization of the fatty acids (it is assumed that the alkylbenezene sulfonic acid is always fully neutralized).

[0030]

TABLE 1Ex. 1Ex. 2Ex. 3A% by% by% by% byweightweightweightweight1Alkylbenzene sulfonic acid22.822.522.522.82C12–18′ alkyl17.3301717.3fatty acid (DTPKA)3C18′–18″ alkyl fatty acid——10—(Rapeseed)4C13–15 alcohol 7-ethoxylate191920195Monoethanolamine4.44.59.28.36C8–10 alkyl1.81.81.81.8amidopropyldimethylamine7Ethoxylated3.23.23.23.2polyethyleneimine8Sodium hydroxide0.9———9Potassium hydroxide—2.0——10Propandiol2210112211Protease / amylase enzymes1.31.31.31.312Water4.55.05.04.513Perfume, dyes, minorsTo 100To 100To 100To 100

[0031]

TABLE 2Ex. ...

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PUM

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Abstract

The present invention relates to a liquid unit dose comprising a water-soluble packet and a liquid encased within the packet, the liquid being a detergent composition comprising:from 5% to 80% by weight of surfactant;from 1% to 15% by weight of non-aqueous solvent;less than 10% by weight of water;wherein the liquid detergent composition comprises fatty acid and further comprises fatty acid soap, wherein the molar ratio of fatty acid to fatty acid soap is from 5:1 to 1:5, and wherein the total level of fatty acid (neutralized and unneutralized) is from 20% to 50% by weight of the liquid composition.

Description

[0001]The present invention relates to liquid unit dose comprising a water-soluble packet and a liquid composition encased within the packet wherein the liquid composition comprises neutralized fatty acid soap and free fatty acid.[0002]U.S. Pat. No. 3,953,351, issued on Apr. 27th 1976, discloses a detergent composition comprising from 5% to 80% nonionic surfactant, 20% to 95% fatty acid and from 0% to 20% water; the fatty acid being partly neutralized to produce a soluble soap. The detergent composition has a pH in the range of 4 to 8.[0003]WO02 / 057401, published on 25th Jul. 2002, discloses somewhat similar detergent compositions and suggests that the compositions are suitable for use in water-soluble containers. However the detergent compositions disclosed in this application comprise less than 20% fatty acid.[0004]However it remains a problem associated with non-aqueous, or low water, detergent compositions that high amounts of non-aqueous solvents are needed in order to maintain...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): C11D17/00C11D3/20C11D10/04C11D17/04
CPCC11D3/2079C11D17/043C11D17/0004C11D10/04
Inventor DE BUZZACCARINI, FRANCESCOGUALCO, LORENZO MATTEO PIERRE
Owner PROCTER & GAMBLE CO
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